I got the JH|13 PROs today and I had them in my ears as much as I could at work. Checked them out with the iPhone and the HeadRoom Desktop Amp/Dac. You can guess which one sounded better, but both were as good as I have heard either with IEMs.

These are my first customs so I need to play them some and get used to them and make sure I have them in right, but just walking around at lunch they stayed sealed and sounded fantastic. Looking forward to spending some time with these and then comparing lots of amps with them.

Unfortunately for me that means the short comings of mismatched OpAmps in my P3+. It's very strange and not being a techie I can't tell you why but with G/V bypassed I get serious siblance on certain songs, normally when it's a quiet part. With OpAmps in G/V the problem disapears. It is worse with some chips in L/R than others.

I'm looking at moving away from the OpAmp rolling for an amp built around a particular chip or circuit, something from Ray Samuels maybe?

Unfortunately for me that means the short comings of mismatched OpAmps in my P3+. It's very strange and not being a techie I can't tell you why but with G/V bypassed I get serious siblance on certain songs, normally when it's a quiet part. With OpAmps in G/V the problem disapears. It is worse with some chips in L/R than others.

I'm looking at moving away from the OpAmp rolling for an amp built around a particular chip or circuit, something from Ray Samuels maybe?

Well after 4000+ posts I was convinced I had to get these, I am getting my impressions done tomorrow and then will send them off. I just can't wait. As in my sig, I have the predator and using a 160gb Ipod running lossless files, the UE TF10s sound great. If the JH13pros are what everyone says they are, this should be unbelievably good!! I saw a number of people have used the predator with the JH13pros and I was wondering what those people thought. I am on the wait list for the shadow and I bet it would work well too. Thanks and cheers. One last thing. As for color, I was thinking of the translucent blue as I want something simple and not too showy. No artwork for now. Any feelings about that or is it just too dumb to ask?